3 Questions
What happens to the thoracic cavity during inspiration?
Increases in size
What occurs when the diaphragm relaxes during expiration?
Volume of the thoracic cavity decreases
How does air enter the lungs during inspiration?
Due to decreased pressure inside the thoracic cavity
Test your knowledge on the process of breathing, including inspiration and expiration. Understand how the diaphragm and ribs muscles contribute to changes in thoracic cavity size and air pressure.
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